Right now, the Devil of Caroc has two endings, depending on whether or not you finish her revenge quest.
I think there should be a third option - if you complete the revenge quest but upgraded the permanently-equipped breastplate (her body) with Durgan Steel.
Since in her "good" ending, she starts to rust, and eventually walks into the ocean, if you upgraded her with legendary metal, it doesn't seem to me like she should rust like that.
I think there should be an additional ending card for if her body was infused with Durgan Steel. Anyone else agree?